帶前艙彈體斜撞擊硬目標的姿態(tài)偏轉(zhuǎn)
發(fā)布時間:2018-06-20 03:04
本文選題:前艙結(jié)構(gòu) + 含缺陷自由梁 ; 參考:《北京理工大學學報》2016年10期
【摘要】:針對帶前艙彈體斜侵徹硬目標靶體的動態(tài)力學響應問題,建立了變截面剛度自由梁在橫向及軸向載荷交互作用下的動態(tài)力學響應模型,分析了帶前艙彈體斜侵徹硬目標時的動態(tài)響應特性,得到了前艙破壞對彈體著靶姿態(tài)角的變化規(guī)律,結(jié)果表明,前艙的量綱一長度、前艙與彈體連接剛度/前艙截面屈服模量與彈體的偏轉(zhuǎn)角正相關(guān).
[Abstract]:Aiming at the dynamic mechanical response of projectile with front cabin penetrating hard target, the dynamic mechanical response model of free beam with variable section stiffness under the interaction of transverse and axial loads is established. In this paper, the dynamic response characteristics of projectile with front cabin when it penetrates hard target are analyzed, and the change rule of attitude angle of front cabin damage to projectile body is obtained. The results show that the dimensionality of front cabin is one length. The connection stiffness of the front cabin and the projectile body / yield modulus of the front cabin section are positively correlated with the deflection angle of the projectile.
【作者單位】: 北京理工大學爆炸科學與技術(shù)國家重點實驗室;
【基金】:國家自然科學基金資助項目(11202029)
【分類號】:O347.1
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